Effect of vitamin E supplementation on growth performance, carcass characteristics and intramuscular fatty acid composition of Longissimus dorsi muscle in Tan’ sheep
The beneficial effects on meat quality of adding vitamin E to diets have been extensively studied in cattle and lamb. However, how supplemental vit E affects the performance and meat quality of ’Tan’ sheep has not been reported. Thirty-five male lambs of ’Tan’...
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Instituto de Investigaciones Agropecuarias, INIA
2013
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oai:scielo:S0718-583920130004000052018-10-02Effect of vitamin E supplementation on growth performance, carcass characteristics and intramuscular fatty acid composition of Longissimus dorsi muscle in Tan’ sheepZhao,TianzhangLuo,HailingZhang,YuweiLiu,KongJia,HuinaChang,YanfeiJiao,LijuanGao,Weimin Carcass characteristics growth performance vitamin E The beneficial effects on meat quality of adding vitamin E to diets have been extensively studied in cattle and lamb. However, how supplemental vit E affects the performance and meat quality of ’Tan’ sheep has not been reported. Thirty-five male lambs of ’Tan’ sheep (20-30 d after weaning) with similar body weight were randomly divided into five groups of seven each to receive a basal diet plus five levels of vit E supplementation: 0 (control group, CG), 20, 100, 200, and 2000 IU d-1 lamb-1. The results showed: 1) no differences were observed in animal growth performance between CG and vit E treated groups (VG) (P > 0.05); 2) vit E supplementation levels over 200 IU d-1 lamb¹ dramatically suppressed subcutaneous fat deposition and similarly that above 100 IU d-1 lamb-1 considerably reduced drip loss and pH 24 h of Longissimus dorsi (LD) muscle in VG lambs compared to those of CG (P < 0.01), but with no significant effect on other carcass characteristics (P > 0.05); 3) although vit E supplementation generally did not affect the fatty acid composition of intramuscular lipids in LD muscle, the percentage of n-6 polyunsaturated fatty acids (PUFA) and the ratio of n-6/n-3 PUFA were significantly enhanced (P < 0.05) and an increasing tendency (P < 0.1) for both total PUFA proportion and the ratio of PUFA/saturated fatty acids (SFA) was also observed in ’Tan’ sheep lambs treated with vit E. In conclusion, vit E supplementation of male ’Tan’ sheep lambs did not influence growth performance, significantly reduced subcutaneous fat deposition, drip loss, pH 24 h and tended to improve fatty acid profile of LD muscle.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.73 n.4 20132013-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000400005en10.4067/S0718-58392013000400005 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
Carcass characteristics growth performance vitamin E |
| spellingShingle |
Carcass characteristics growth performance vitamin E Zhao,Tianzhang Luo,Hailing Zhang,Yuwei Liu,Kong Jia,Huina Chang,Yanfei Jiao,Lijuan Gao,Weimin Effect of vitamin E supplementation on growth performance, carcass characteristics and intramuscular fatty acid composition of Longissimus dorsi muscle in Tan’ sheep |
| description |
The beneficial effects on meat quality of adding vitamin E to diets have been extensively studied in cattle and lamb. However, how supplemental vit E affects the performance and meat quality of ’Tan’ sheep has not been reported. Thirty-five male lambs of ’Tan’ sheep (20-30 d after weaning) with similar body weight were randomly divided into five groups of seven each to receive a basal diet plus five levels of vit E supplementation: 0 (control group, CG), 20, 100, 200, and 2000 IU d-1 lamb-1. The results showed: 1) no differences were observed in animal growth performance between CG and vit E treated groups (VG) (P > 0.05); 2) vit E supplementation levels over 200 IU d-1 lamb¹ dramatically suppressed subcutaneous fat deposition and similarly that above 100 IU d-1 lamb-1 considerably reduced drip loss and pH 24 h of Longissimus dorsi (LD) muscle in VG lambs compared to those of CG (P < 0.01), but with no significant effect on other carcass characteristics (P > 0.05); 3) although vit E supplementation generally did not affect the fatty acid composition of intramuscular lipids in LD muscle, the percentage of n-6 polyunsaturated fatty acids (PUFA) and the ratio of n-6/n-3 PUFA were significantly enhanced (P < 0.05) and an increasing tendency (P < 0.1) for both total PUFA proportion and the ratio of PUFA/saturated fatty acids (SFA) was also observed in ’Tan’ sheep lambs treated with vit E. In conclusion, vit E supplementation of male ’Tan’ sheep lambs did not influence growth performance, significantly reduced subcutaneous fat deposition, drip loss, pH 24 h and tended to improve fatty acid profile of LD muscle. |
| author |
Zhao,Tianzhang Luo,Hailing Zhang,Yuwei Liu,Kong Jia,Huina Chang,Yanfei Jiao,Lijuan Gao,Weimin |
| author_facet |
Zhao,Tianzhang Luo,Hailing Zhang,Yuwei Liu,Kong Jia,Huina Chang,Yanfei Jiao,Lijuan Gao,Weimin |
| author_sort |
Zhao,Tianzhang |
| title |
Effect of vitamin E supplementation on growth performance, carcass characteristics and intramuscular fatty acid composition of Longissimus dorsi muscle in Tan’ sheep |
| title_short |
Effect of vitamin E supplementation on growth performance, carcass characteristics and intramuscular fatty acid composition of Longissimus dorsi muscle in Tan’ sheep |
| title_full |
Effect of vitamin E supplementation on growth performance, carcass characteristics and intramuscular fatty acid composition of Longissimus dorsi muscle in Tan’ sheep |
| title_fullStr |
Effect of vitamin E supplementation on growth performance, carcass characteristics and intramuscular fatty acid composition of Longissimus dorsi muscle in Tan’ sheep |
| title_full_unstemmed |
Effect of vitamin E supplementation on growth performance, carcass characteristics and intramuscular fatty acid composition of Longissimus dorsi muscle in Tan’ sheep |
| title_sort |
effect of vitamin e supplementation on growth performance, carcass characteristics and intramuscular fatty acid composition of longissimus dorsi muscle in tan’ sheep |
| publisher |
Instituto de Investigaciones Agropecuarias, INIA |
| publishDate |
2013 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000400005 |
| work_keys_str_mv |
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